So, I bought my computer with only 512MB of RAM. Well, that is too slow. So I bought 1GB of RAM, and installed it to my PC. Well, I notice my PC is running faster. But, I went to Control Panel -> System, and it says I only have 1GB of RAM, even though I have a 1GB card and a 512MB card installed. I tried switching the RAM slots, but no go. So I look at the output from CPU-Z, and it says I have 1.5GB of RAM. So is Windows actually using all 1.5GB, or is it just using 1GB? I'm thinking that since CPU-Z says it's there, but Windows doesn't, maybe Windows just isn't utilizing it.